ID | 13882 |
Eprint ID | 13882
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フルテキストURL | |
タイトル(別表記) | Meteorological and surface heat balance characteristice over different surface condidtions in arid northwest China (HEIFE area)
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著者 |
楊 勤
Graduate School of Natural Science and Technology, Okayama University
塚本 修
Department of Earth Sciences, Faculity of Science, Okayama University
Kaken ID
publons
researchmap
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抄録 | Surface meteorological and heat balance were analyzed based on various surface conditions over arid region in northwest China (HEIFE area). The different surface conditions were clearly observed in summer rather than in winter. Summer data were selected from the HEIFE database.
Significant evening peaks of vapor pressure were also observed in Linze oasis as well as Zhangye oasis. And the peak was accompanied by air temperature dip and relative humidity peak in the lower layer. However, the peak cannot be observed in high wind condition as the mechanical mixing reduces the vertical gradients of air temperature and humidity. The oasis can be characterized by low wind speed due to wind sheltering by plants. In winter, plant activities are reduced and surface conditions are almost similar for desert and oasis, leading to no peak of vapor pressure.
Surface heat balances were also analyzed based on 4-component radiation measurement and sensible and latent heat flux measurements by eddy covariance method. Net radiation in the oasis area is about 50% larger than desert area due to the smaller upwelling radiation in oasis. Heat distribution into sensible heat and latent heat was different between oasis and desert. This unbalance of heat can lead to local circulation between oasis and desert as "desart-oasis interaction".
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キーワード | Vapor pressure
Oasis
Desert
HEIFE
Surface heat balance
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発行日 | 2002-09-20
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出版物タイトル |
Okayama University Earth Science Report
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出版物タイトル(別表記) | 岡山大学地球科学研究報告
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巻 | 9巻
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号 | 1号
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出版者 | 岡山大学理学部地球科学教室
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出版者(別表記) | Department of Earth Sciences Faculty of Science, Okayama University
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開始ページ | 31
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終了ページ | 40
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ISSN | 1340-7414
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NCID | AN10506284
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資料タイプ |
紀要論文
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言語 |
日本語
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著作権者 | 岡山大学地球科学研究報告編集委員会
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論文のバージョン | publisher
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査読 |
無し
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Eprints Journal Name | esr
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